问题补充：
阅读下面短文，用括号内所给动词的适当形式填空（必要时可加助动词或情态动词）
The largest problem among teenagers is that they are too stressed. Mary, a 26-year-old girl,
1.(worry) about her exams very often. Although she 2.(study) English for three years, and is good at it, she is still afraid of English exams. Last night, after 3.(come) back home, she 4.(begin) to get ready for her English exam. While she 5.(read) English books, her mother said to her, “Come on, dear! It’s time 6.(.have) supper!” But Mary
7.(not listen) to her mother. She went on reading. Her mother went on, “Mary, I believe you. You can pass your exam tomorrow.” But Mary still went on studying. At 11:30 the light in her room 8. ( be )still on. Her mother said to her, “I think teenagers 9.(go) to bed earlier before exams than usual.” Mary agreed, but she 10.(not fall)asleep. She was too nervous. Maybe it is time to solve the teenagers’ problems.worries
答案：
(答案→)worries
解析：
【小题1】主语是a 26-year-old girl谓语是第三人称单数：worries
【小题2】和一段时间连用：for three years可知用现在完成时：has studied
【小题3】介词after后面接动名词：coming
【小题4】时间是Last night后面的动作是过去时： began
【小题5】While后面接过去进行时：was reading表示：当过去正在做,…的时候。
【小题6】考查句型：It’s time to do该做…了，填to have
【小题7】考查过去时的否定，用助动词didn’t listen
【小题8】考查be动词的过去时：the light in her room后面用单数was
【小题9】年轻人应该子考试前早些睡觉：should go
【小题10】玛丽同意了，但是睡不着：couldn’t fall
阅读下面短文 用括号内所给动词的适当形式填空（必要时可加助动词或情态动词） The largest problem among teenagers is that they are
